Plumbing, heating & AC contractors in District of Columbia 90 establishments · 1,636 employees · 2024
Firms (DC)
90
Employment
1,636
Avg Annual Pay
$103,372
State Rank
#52 of 52
How District of Columbia compares to national
Metric
District of Columbia
National
District of Columbia vs. U.S.
Establishments
90
122,643
0.1% of U.S. total
Avg annual pay
$103,372
$78,183
+$25,189 (+32.2%)
Location quotient
0.17
1.00
83% less dense than national
Avg firm size (employees)
18.2
10.5
—
Year-over-year firm growth
+12.5%
—
—
Reading this
An establishment is a single physical location where business is conducted. A firm with multiple locations counts as multiple establishments. "Avg pay" is wages and salaries per employee, including bonuses and tips — for proprietorships, the owner's take is largely outside this number. The location quotient (LQ) of 0.17 means plumbing, heating & ac contractors are 83% under-represented in District of Columbia's business mix relative to the U.S. average.
Top 10 states for plumbing, heating & ac contractors
Source. BLS Quarterly Census of Employment and Wages — 2024 annual averages, private-ownership only, NAICS 23822 (5-digit aggregation). Establishment counts include any firm with at least one paid employee covered by state unemployment insurance.
SMB Density · firm counts, employment, and wages by industry × state · data from BLS QCEW 2024 annual (private ownership, state-level; mostly 6-digit NAICS, 3 specialty-trade industries at 5-digit aggregation) · data.json